The tribe is also partnered with Churchill Downs Incorporated to operate the BetAmerica brand for the live online sports betting and internet gaming markets in Michigan. 10, 2020, when the BetAmerica Sportsbook opened. Sports betting came to Island Resort and Casino on Sept. Players have to be 18 years or older to enter the Island Resort gaming floor. Guests to the resort can stay in one of the 326 rooms in the onsite hotel. The resort itself is a top-notch multi-activity property with golf courses, restaurants, and the casino. The Island Resort and Casino is owned and operated by the Hannahville Indian Community, which is a federally-recognized tribe that is part of the larger Potawatomi Tribe. Michigan’s Island Resort and Casino is a tribal property located in Harris in the southwestern portion of the state’s Upper Peninsula.